Single output stack for petri dishes



FIG. 1 is a right side perspective view of a single output stack for petri dishes showing our new design;

FIG. 2 is a rotated right side perspective view thereof;

FIG. 3 is a left plane side view thereof;

FIG. 4 is a left side perspective view thereof;

FIG. 5 is a rotated left side perspective view thereof;

FIG. 6 is a bottom plane view thereof; and,

FIG. 7 is a top plane perspective view thereof.

The broken lines depict parts of the single output stack for petri dishes that form no part of the claimed design. 

CLAIM The ornamental design for a single output stack for petri dishes, as shown and described. 